Journal of Magnetic Resonance Paper Published
Our new study of aluminium-organic batteries, entitled “Revealing Impacts of Electrolyte Speciation on Ionic Charge Storage in Aluminum-Quinone Batteries by NMR Spectroscopy”, is now out in the Journal of Magnetic Resonance. This is a detailed analysis of the ionic charge storage mechanisms in aluminium-quinone batteries where we begin by detailing the speciation of three different Lewis acidic ionic liquid/ionic liquid analogue electrolytes by liquid-state NMR, we then use solid-state NMR to determine the nature of the complexed ions upon electrochemical discharge in each electrolyte. We further use DFT calculations to both determine the most favorable electroactive cation generation pathways and to link the experimentally derived NMR quadrupolar parameters to a physical basis of ion interaction with different quinone structures. Finally, we also validate our hypothesised mechanisms with targeted experiments, proving the function of various ionic species.